He was weak, unloved by his parents, had problems with his grandfather (Louis XV.) and had been married with 15 (!!!) with a woman he hadn't seen before. Maria Antonia wasn't Kirsten Dunst :D It's better, because French used the Guillotine not for cigars.
Sorry to be so blunt, but his foreskin was too tight, but he managed to overcome it without surgery. They went seven years without consumating their marriage.